void preemptiveTests()
{
static const int duration = 10;
int ret;
int ii;
startAlarmHelper();
spin(2);
interruptsQuiet();
potato[0] = 1;
for(ii = 1; ii < NPOTATO; ii++){
potato[ii] = 0;
}
printf("Running hot potato test. This will take %d seconds\n",
duration);
for(ii = 0; ii < NPOTATO; ii++){
potatoTids[ii] = ULT_CreateThread((void (*)(void *))doPotato, (void *)ii);
assert(ULT_isOKRet(potatoTids[ii]));
}
spin(duration);
printf("Hot potato done. Cleaning up\n");
for(ii = 0; ii < NPOTATO; ii++){
ret = ULT_DestroyThread(ULT_ANY);
assert(ULT_isOKRet(ret));
}
printf("Done.\n");
}
void
lockTests()
{
ULT_Yield(ULT_ANY);
startAlarmHelper();
interruptsQuiet();
/*
* One mailbox
*/
Mailbox *mb = (Mailbox *)malloc(sizeof(Mailbox));
assert(mb);
mb_init(mb, 2, MAXMAIL);
ULT_CreateThread((void (*)(void *))mbWorker0, mb);
while(!mb_checkDone(mb)){
ULT_Yield(ULT_ANY);
}
int jj;
for(jj = 0; jj < 1000; jj++){
ULT_Yield(ULT_ANY);
}
assert(mb_checkDone(mb));
free(mb);
printf("One mailbox, two threads OK\n");
/*
* Two mailboxen
*/
mb = (Mailbox *)malloc(sizeof(Mailbox));
assert(mb);
mb_init(mb, 2, MAXMAIL);
Mailbox *mb2 = (Mailbox *)malloc(sizeof(Mailbox));
assert(mb2);
mb_init(mb2, 2, MAXMAIL);
ULT_CreateThread((void (*)(void *))mbWorker0, mb);
ULT_CreateThread((void (*)(void *))mbWorker0, mb2);
while(!mb_checkDone(mb)){
ULT_Yield(ULT_ANY);
}
for(jj = 0; jj < 1000; jj++){
ULT_Yield(ULT_ANY);
}
assert(mb_checkDone(mb));
while(!mb_checkDone(mb2)){
ULT_Yield(ULT_ANY);
}
for(jj = 0; jj < 1000; jj++){
ULT_Yield(ULT_ANY);
}
assert(mb_checkDone(mb2));
free(mb);
free(mb2);
printf("Two mailboxen, four threads OK\n");
printf("lockTests OK\n");
}